“[A]nother key difference between Western vs. Eastern (i.e., WEIRDO vs. clannish) thought: the former see things (and themselves) as atomized individuals, while the latter view objects in the world as part of an interconnected whole. This is a defining aspect on the clannishness dimension: low-clannishness peoples (WEIRDOs) see themselves as atomized individuals, who form associations voluntarily and not necessarily based on kinship. High-clannishness peoples see themselves as inherently part of the group (e.g., family, clan, tribe, village/town, etc.)….

“How did this penchant for abstraction come about among NW Europeans? I suspect that part of it has to do with the rise of high-trust and social atomization (i.e., individualism) in NW European societies. As clannishness disappeared, and as people were no longer bound to their families or clans (and indeed, we were free to interact with non-relative in cooperative ventures), people became more free to engage in intellectually stimulating thought. Mental space previously devoted understand one’s place in society and keep ahead of schemers now could be used on more abstract pursuits.“

while it’s an interesting idea, i don’t think that freed up mental capacity once dedicated to clannish traits was co-opted in the brains of westerners (nw europeans) in their post-clannishness state and then devoted greater abstract thought. maybe. but i suspect the connection is (somehow) much more direct: i think (theorize, speculate, etc.) that in simply becoming more independent individuals — i.e. less genetically like others around them thanks to outbreeding — that the mindset simply shifted. atomized individuals, atomized (and, therefore, abstract) thinking. please don’t get your panties all in a bunch. yes, this is complete and wild speculation on my part. i can’t even guess what the mechanism might have been, so don’t sue me if i’m wrong. (nw europeans, btw, began to think of themselves as individuals in the middle of the eleventh century a.d.)

another much more informed guess: that nw europeans’ exceptional ability for inventiveness especially in science (which cannot be divorced from their high average iqs — as jayman pointed out, africans are pretty inventive, but without enough iq points, no one there’s going to the moon) has a LOT to do with the selection pressures that happened thanks to the manor system which was found in nw europe during the middle ages, specifically bipartite manorialism.

to back up for a sec: inventiveness/creativity/scientific reasoning in east asians, or the relative lack of it. jayman suggests that their tendency for holistic — and, therefore, not abstract — thinking hobbles east asians when it comes to inventiveness, etc. that, i think, makes a lot of sense. i do think, though, that the cochran-harpending idea of conformity in east asia (“nails hammered down”/low levels of adhd) also makes a lot of sense. the two ideas go well together, imho. wrt the “nails hammered down” hypothesis, my bet is that that selection process goes waaaay back. complex chinese civilization (that centered around the yellow river valley) is three or four thousands of years old. i think they’ve been hammering down the contrarians/independent thinkers there for a very long time. greg cochran has mentioned that the high-altitude adaptation of tibetans works better than those of other groups adapted to living in the clouds because the tibetan adaptations have been under selection for longer (even some acquired from the denisovans and/or other archaic humans?). i suspect that this is why conformism/lack of independent thinking is so strong in east asia: it’s been under selection there for a very long time. northwest europe’s civilization is obviously much, much younger.

now, to return to northwest “core” europeans: i strongly suspect their inventiveness/abstract thinking style/scientific thinking (and other behavioral traits, for that matter) were selected for thanks to the the following medieval trifecta:

– outbreeding (i.e. the abandonment of close cousin marriage) which meant that the selection for nepostic altruism was curbed since family members would no longer share so many “genes for altruism” in common (see: renaissances), PLUS individuals became “atomized” (therefore more abstract thinking arose, etc.);
– change in family types from extended to nuclear, which again would limit the selection for nepotistic altruism since individuals would interact more with non-kin than family;
– bipartite manorialism, which began in frankish territories in northeastern france/belgium and spread across nw and central europe in areas that are pretty much coterminous (prolly not coincidentally) with the hajnal line.

bipartite manorialism, in which tenant farmers would work for (later pay rent to) the head of a manor but also farm for themselves, operated as a sort-of franchise system in which the tenants on their individual farms had to make it or break it independently (i.e. without support from an extended family/clan, the dumber members of which would no longer be a drag on our independent farmers). there was, no doubt, cooperation between the tenant farmers which, once the outbreeding reduced the selection for nepotistic altruism, could’ve resulted in the selection for a more general, reciprocal altruism. but bipartite manorialism, i think, would’ve also selected for other traits like a propensity to be hard working, delayed gratification, and inventiveness: those individuals who came up with new ideas for improving their farming (or related) techniques could’ve bettered their place on the manor and been more successful reproductively.

the final stage — at least as far as the medieval period goes — in the selection for “core” europeans was the ostsiedling: this was The Big Self-Sorting to the east of individuals who were already well underway to being outbred/manorialized in western germanic regions — in other words, they were well underway to being westernized as we know it. i don’t think it can be a coincidence that the heart of human accomplishment in western europe (which is also pretty much the heart of human accomplishment) is found in the manorialized regions of europe and very much where the ostsiedlung happened (see also here). my bet is that it was very much hard-working, innovative (especially, at the time, in agricultural/engineering techniques), high-achievers who went forth into the east during the medieval period. and they prospered and multiplied once they were there.

so that’s the picture as i see it so far. i reserve the right to change my mind/be utterly and completely wrong. (~_^)
_____

“The reality is that evolution proceeds much quicker than you think. Just as HBD’ers generally understand that human evolution didn’t stop 50,000 years ago, it also did not stop 10,000 years ago, or even 1,000 years ago, or even 500 or 200 years ago. Evolution continues right up to the present day. The reason I bring this up is because I keep hearing about how X group was doing this 2,000 years ago or about how Y group was doing this 1,000 years ago, so how could they be so different now? The reason is that they have changed since that time.“

hear, hear! and…duh! human evolution is recent, both global and local, ongoing, and can be pretty rapid. not in one generation, obviously, but twenty or forty is plenty of time. also, gene frequencies in populations move upwards or downwards over time — they do not (have to) remain stagnant. i quoted stephen stearns recently (here):

“Well I think what is very probably going on is that selection is moving a population up and down all the time. It goes off in a certain direction for a while, and then it goes back in the other direction. It’s only if you get a significant change in the environment that it will then continuously go in a new direction.”

“Ancient Greeks did a lot of abstract thinking, and produced the greatest cultural/scientific peak until the Renaissance (according to the same Charles Murray’s figures). During the Middle Ages, in pure scientific terms, the Islamic world was most advanced. The Renaissance began in northern Italy. Only in the 17th century did the bulk of scientific discoveries move to NW Europe.”

as i mentioned above, it looks like the ancient greeks (the athenians) went from inbred to outbred and back to inbred again. mind you, i only have some pretty slim historic/literary evidence for that, so you should take my claim with a large grain of salt, but i’ll keep working on the Greek Question. the romans, who were also pretty sharp, at least when it came to engineering, were very clearly outbred (they bequeathed their outbreeding practices to us). the renaissance did begin in northern italy, and that doesn’t come as a big surprise to me ’cause northern italy was the most heavily manorialized part of italy (i’ll tell you more about this in my long overdue series on manorialism). northern italians were also prboably quite outbred during the medieval period, although further research is required on that front, too. the scientific revolution, however — especially the development of the scientific method — was very much a north european baby, though. from what i understand of science in the medieval islamic world, most of that was down to the persians. can’t tell you anything about medieval persian society, unfortunately, ’cause i don’t know anything about it.

i was thinking about the idea of genetic pacification, specifically via the state or some authority eliminating the most violent individuals from a population (like by execution as frost and harpending propose happened in medieval europe — see also here), and i got to wondering how other societies have meted out justice to violent offenders.

so, like hermione granger, i went to the library (heh! — no, really i just googled it) and found a few interesting things. one of them is that in traditional igbo society, the punishment for murder was left in the hands of the culprit(!) [pg. 285]:

“[T]he Igbo believe that there are both divine and man-made laws, but that the greatest penalties are reserved for breaches of divine law. Thus, a murderer would not be put on trial, because if the evidence were clear and convincing no earthly court could have jurisdiction. Indeed, the penalty prescribed by Igbo tradition is that the murderer is expected to hang himself…. [A]ny Igbo guilty of breaking a divine law would be required to do penance personally to be restored to the good favor of the gods.”

now you might think that leaving enforcement of the death penalty up to the criminal is a really bad idea — and maybe it is — but i was thinking that it might work in a shame culture. an especially strong shame culture. certainly worked in japan (at least among certain classes), which admittedly is the poster child of shame cultures.

couldn’t figure out whether or not igbo society is a shame culture, although most societies lean more toward shame than guilt. however, i do know that igbos — igbo slaves in the new world — had a reputation for committing suicide [pgs. 52-53 and 127-128 – links added by me]:

“Suicide as an ethnic or cultural ‘trait’ is usually associated with Bight of Biafra imports, especially Igbos, in the Americas. As Daniel Littlefield contends, the principle reason why they were among the least desirable of African slave imports was due to the perception among American planters that Igbo or Calabar slaves had ‘a deplorable penchant for committing suicide.’ More recently, Michael Gomez has summarized the historical and contemporary view of Igbos, noting that ‘the sources are therefore unanimous in ascribing to the Igbo greater self-destructive tendencies….’

“Biafran imports were often much cheaper than other Africans. In 1755, Igbo slaves sold in Charleston for only £270 while Africans from other regions cost £300. Henry Laurens — the noted slave merchant of colonial South Carolina — claimed in 1755 that very few Calabar Africans could be sold in the Charleston slave market when others were available. He then recommended the importation of a ‘few fine Negro Men, not Callabars.’ In a letter to Richard Oswald dated May 17, 1756, Laurens also noted that ‘slaves from the River Gambia are preferr’d to all others with us save the Gold Coast, but there must not be a Callabar among them.’

“Much of this prejudice against Igbos and others from the Bight of Biafra was due to their alleged propensity to commit suicide. Guerard complained, ‘As to bite Slaves, I protest against them at any Rate there has been so many instances of their Distroying themselves that none but the Lower sort of People will Medle with them.’ South Carolina planters who did purchase Calabar slaves were advised to buy only ‘young People from 15 to 20’ who were typically ‘not accustom’d to destroy themselves’ like their older compatriots. Based on this assumption, Henry Laurens advised that Bigt of Biafra slaves under the age of fourteen should be the only Africans from that region purchased by Low Country planters. In another assessment by ship captain John Adams, who made ten visits to the Niger River delta between 1786 and 1800, the Ibgo were considered to be ‘naturally timid and desponding, and their despair on being sent on board a ship is often such that they use every stratagem to effect the commission of suicide, and which they would often accomplish, unless narrowly watched.'”

can’t say as i blame them.

the usual explanation offered today for why slaves from the bight so often committed suicide is the belief, widely shared by peoples in west africa, in spiritual transmigration — when you die, you get to go to where your friends and family are — where your living friends and family here on earth still are. so, maybe death was not viewed as a bad solution for a biafran captive who was dragged halfway across the world. in their minds, they’d get to go home. alternatively, maybe they just didn’t want to be slaves. ooorrr…maybe there was an element of shame involved, but that’s pure speculation on my part. would be interesting to find out, though.

no idea if violence is lower among the igbo than other west african groups. need to find out. interesting that they were described as “naturally timid” though.
_____

a further thought i had is that perhaps long-term inbreeding can amplify shame in populations. the japanese used to marry their cousins (although i don’t know how far back that practice went) and they have an extremely strong shame culture. the arabs, too — long-term inbreeders and there’s a lot of shame there, too (family honor, etc.). perhaps shame is a sort-of familial altruism, i guess is what i’m trying to say. dunno. Further Research is Required TM.
_____

in the wake of chanda chisala’s post over at unz.com, several people asked me so what about the igbo? are they inbreeders or what?

i haven’t read much about the igbo, but what i do know is that they avoid all cousin marriage. don’t know how far back this goes — whether it’s pre-the introduction of christianity there or not. might be. might not be. they do practice polygamy, though, especially traditionally, which ought to narrow the genetic relatedness between individuals in the population in a way similar to cousin marriage, but…well, more on polygamy another day.

very interestingly, in their traditional society, the igbo had a “quasi-democratic republican system of government” — that’s if wikipedia is to be believed. the igbo also had non-kinship based trading associations or “houses” [pg. 137]:

“In order to exploit the rapidly expanding trade [with the newly arrived europeans] and now having the resources to do so, the delta peoples living in single settlements on the rivers and islands surrounded by protective intricate waterways developed systems of governance for their own city-states. City-states are well known in history, and many have in common a maritime presence. In Europe there were the famous Greek city-states, Athens and Sparta. In East Africa there were the coastal Swahili city-states of Mombasa, Malindi, and Kilwa among others. On the coast of West Africa there were the city-states of the Niger Delta whose citizens devised the means to adminster law and order, justice, and to make war and peace in order to promote their commerce. Each delta city-state, like those of the Greeks, had its own distinct methods of governing. Some had kings elected by the heads of wealthy and prominent families — Bonny, New Calabar, and Warri. Others were like small republics, ruled by the members of political organizations not unlike senates — Brass and those on the Cross River in Old Calabar — Creek Town, Henshaw Town, Duke Town, and Obutong. In the city-states of Old Calabar the *ekpe* or Leopard Association of wealthy men, mostly merchants, ruled the town principally to insure the flow of peaceful trade. Anyone was free to join the *ekpe* if they could afford the exorbitant entry fee that insured that those in power represented only the interests of the wealthy merchants. They regulated the terms of trade with the Europeans and made the rules by which the community was governed by its constituent organizations, known as the ‘house system.’

“Traditional African societies were based on the clans and lineages of large families that were not always the most effective means to carry on business. Rather than the family firm, the house was a cooperative commercial trading company run not by kinship but by the ability of the head of the house, his immediate family, and a host of assistants, servants, and even slaves whose status in the company depended on their success in promoting its trade rather than kinship ties or social privilege.”

the ability to form strong, functioning non-kinship based associations like that usually goes along with long-term outbreeding, in my experience.
_____

well, that’s all i’ve got for you for now.

i finally have admitted to myself — and now i will to you, too, dear readers — that i am too unwell at the moment to write my (what will be a lengthy!) response to prof. macdonald or, unfortunately, to work on my promised (threatened!) medieval manorialism series. am having difficulties putting two coherent thoughts together these days. (yeah, yeah — more so than usual! (~_^) ) so, i’ll just have to leave those on the back burner for now and get to them when i can. i’m due to have some medical tests done in the next few weeks, so hopefully after that, i can get myself sorted out and back in working order. in the meantime, i’ll do some more flakey posts like this which just involve me rambling some of my random thoughts.

“‘By 1200 Western Europe has a GDP per capita higher than most parts of the world, but (with two exceptions) by 1500 this number stops increasing. In both data sets the two exceptions are Netherlands and Great Britain. These North Sea economies experienced sustained GDP per capita growth for six straight centuries. The North Sea begins to diverge from the rest of Europe long before the “West” begins its more famous split from “the rest”. [W]e can pin point the beginning of this “little divergence” with greater detail. In 1348 Holland’s GDP per capita was $876. England’s was $777. In less than 60 years time Holland’s jumps to $1,245 and England’s to 1090. The North Sea’s revolutionary divergence started at this time.’

so there are three big things — political liberty, prosperity, and literacy — all of which improved significantly, or began on a trajectory to do so, already by the high middle ages in northwestern or “core” europe (england, netherlands, nw france, ne germany, scandinavia, etc.).

there are additionally some other large and profound societal changes that occurred in core europe which also started earlier than most people think:

“In the thirteenth and fourteenth century, the mean of almost 40 different estimates lies around 24 homicides per 100,000. The average homicide rates are higher for the late fourteenth century than for the thirteenth century, but it seems impossible to say whether this is due to the difference of the sources used or reflects a real increase related to the social and economic crises in the late Middle Ages. When estimate start again after a gap of some 150 years, the average calculated homicide rates are considerably lower with typical values of between 3-9 per 100,000. From then onwards, the data for Kent line up with surprising precision along a straight line that implies a long-term declining trend for more than 350 years.” [pg. 622]

while it is likely that the state’s persistent execution of violent felons over the course of a couple of hundred years in the late medieval/early modern period resulted in the genetic pacification of the english (and other core europeans — this is the frost & harpending proposal), it is also apparent that the frequency of homicides began to drop before the time when the english state became consistent and efficient about its enforcement of the laws (basically the tudor period) — and even before there were many felony offences listed on the books at all. homicide rates went from something like 24 per 100,000 to 3-9 per 100,000 between the 1200s and 1500s, before the state was really effective at law enforcement [pg. 90]:

“As part of their nation-state building the Tudors increased the severity of the law. In the 150 years from the accession of Edward III to the death of Henry VII only six capital statutes were enacted whilst during the next century and a half a further 30 were passed.”

the marked decline in homicides beginning in the high middle ages — well before the early modern period — needs also to be explained. you know what i think: core europeans were at least partly pacified early on by the selection pressures created by two major social factors present in the medieval period — outbreeding and manorialism.

– the rise of the individual, which began in northwest europe at the earliest probably around 1050. yes, there was a rather strong sense of the individual in ancient greece (esp. athens), but that probably came and went along with the guilt culture (pretty sure these things are connected: individualism-guilt culture and collectivism-shame culture). and, yes, individualism was also strong in roman society, but it seems to have waned in modern italy (probably more in the south than in the north, and possibly after the italian renaissance in the north?). siendentorp rightly (imho) claims that it was the church that fostered the individualism we find in modern europe, but not, i think, in the way that he believes. individualism can come and go depending, again i think, on mating patterns, and the mating patterns in northwest europe did not shift in the right direction (toward outbreeding) until ca. the 700-800s (or thereabouts) thanks to the church, so individualism didn’t begin to appear in that part of the world until after a few hundred years (a dozen-ish generations?) or so of outbreeding.

in any case, the earliest appearances of individualistic thinking pop up in nw europe ca. 1050, which is quite a bit earlier than a lot of people imagine, i suspect.

– the disappearance of and dependence upon the extended family — the best evidence of this of which i am aware comes from medieval england. the early anglo-saxons (and, indeed, the britons) had a society based upon extended families — specifically kindreds. this shifted beginning in the early 900s and was pretty complete by the 1100s as evidenced by the fact that members of the kindred (i.e. relatives) were replaced by friends and colleagues (i.e. the gegilden) when it came to settling feuds. (see this previous post for details: the importance of the kindred in anglo-saxon society.)

the usual explanation offered up for why the societies in places like iraq or syria are based upon the extended family is that these places lack a strong state, and so the people “fall back” on their families. this is not what happened in core europe — at least not in england. the importance of the extended family began to fall away before the appearance of a strong, centralized state (in the 900s). in any case, the argument is nonsensical. the chinese have had strong, centralized states for millennia, and yet the extended family remains of paramount importance in that society.

even in the description of siedentorp’s Inventing the Individual we read: “Inventing the Individual tells how a new, equal social role, the individual, arose and gradually displaced the claims of family, tribe, and caste as the basis of social organization.” no! this is more upside-down-and-backwardness. it’s putting the cart before the horse. individualism didn’t arise and displace the extended family — the extended family receded (beginning in the 900s) and then the importance of the individual came to the fore (ca. 1050).

there are a lot of carts before horses out there, which makes it difficult to get anywhere: the protestant work ethic didn’t result in economic prosperity — a work ethic was selected for in the population first and, for various reasons, this population then moved toward even more protestant ideas and ways of thinking (and, voila! — the reformation. and the radical reformation as a reaction to that.) a strong state did not get the ball rolling in the reduction in violence in nw europe or lead to the abandonment of the extended family — levels of violence began to decline before the state got heavily involved in meting out justice AND the extended family disappeared (in northern europe) before the strong state was in place. and so on and so forth.

it’s very hard for people to truly understand one another. (this goes for me, too. i’m no exception in this case.) and, for some reason, it seems to be especially hard for people to understand how humans and their societies change. i suppose because most people don’t consider evolution or human biodiversity to be important, when in fact they are ALL important! in coming up with explanations for why such-and-such a change took place, the tendency is to look at the resultant situation in our own society — eg. now the state is important rather than the extended family, which is what used to be important — and to then assume that the thing characteristic of the present (the state in this example) must’ve been the cause of the change. i don’t know what sort of logical fallacy that is, but if it doesn’t have a name, i say we call it the cart-horse fallacy! (alternative proposal: the upside-down-and-backwards fallacy.) explaining how changes happened in the past based on the present state of affairs is just…wrong.

so, a lot of major changes happened in core european societies much earlier than most people suppose and in the opposite order (or for the opposite reason) that many presume.
_____

also, and these are just a couple of random thoughts, the protestant reformation happened in the “core” of core europe; the radical reformation (a set of reactionary movements to the main reformation) and the counter reformation (the more obvious reactionary movement to the reformation) happened in peripheral europe. the enlightenment happened in the “core” of core europe; the romantic movement, in reaction to the enlightenment, happened in peripheral europe (or peripheral areas of core countries, like the lake district in england, etc.). just some thoughts i’ve been mulling over in my sick bed. =/
_____

there’s been a theory floated for a few years now that there was a sort of apartheid system in early anglo-saxon england in which the angles and saxons and jutes didn’t really mix with the native britons. or vice versa. from thomas, stumpf, and härke:

“Reproductive isolation and differential social status along ethnic lines is a frequent, temporary consequence of conquest and settlement, the best-known modern case being the Apartheid system in South Africa. In the post-Roman period, intermarriage between dominant immigrants and subject natives was banned in Visigothic France and Spain in the late ﬁfth and early sixth century (King 1972). The Normans in eleventh- and twelfth-century England operated a conquest society in which the native English and Welsh had a lower legal status than Normans (Garnett 1985), and intermarriage, where it happened, was predominantly unidirectional, i.e. Norman men marrying English women. In Anglo-Saxon England, elements of an apartheid-like society can also be perceived in a Wessex law code of the seventh century which distinguishes clearly between Saxons and ‘Welsh’ (Britons) and gives the former a signiﬁcantly higher legal status, some two centuries after the initial immigration (Whitelock 1979). Archaeological and skeletal data (Härke 1990, 1992), as well as textual evidence (Woolf, 2004), have been used to suggest a situation of limited intermarriage between immigrant Anglo-Saxons and native Britons until the seventh century when this distinction began to break down.”

“The Cent./S England inferred admixture date is older, at around 1200 years ago. This is moderately, but significantly, more recent than the historically accepted time of approximately 1400 years ago (around 600) for the Anglo-Saxon migration into England. This discrepancy is unlikely to be explained by errors in our human generation time (we used 28 years) because an unlikely generation time of 33 years or higher would be required to account for this difference. Instead, an important point is that the date of admixture cannot be earlier than the arrival of a group, but can be later if mixing did not occur for some period (e.g. if the Anglo-Saxon community remained distinct for some period after arrival), or if mixing took place gradually, and initially at a relatively slow rate.”

so, they’re saying that intermarriages between the anglo-saxons and the native britons didn’t really get going until the 800s.

across the channel in the frankish kingdoms, cousin marriage didn’t became socially unacceptable until the 800s, even though there were local bans issued by bishops in the frankish kingdoms as early as the 500s. as i wrote in a previous post:

“In the course of the eighth century the Frankish campaign against incest gained momentum, aided by papal decrees and letters which began to circulate in the North (De Jong 1989:38-41). When it came to blood relations papal guidelines were more radical than Frankish episcopal and royal decrees, but in other respects — such as spiritual kinship — Rome and the Frankish leadership saw eye to eye right from the beginning. Letters sent from Rome to Boniface reveal an increasingly rigid papal position. Gregory II forbade all unions between blood relations and affinal kin (‘*quamdiu se agnoscunt affinitate propinquos*’), but permitted the recently converted a marriage ‘*post quartam generationem*’; his successor Gregory III withdrew any such privilege, assuring Boniface that marriage within the seventh *generatio* was out of the question….

“In practice…it did not make any difference whether one forbade marriage ‘until the seventh *generatio*’ (Gregory III), or proclaimed an unspecified ban on all kinswomen and affines (Gregory II). Both meant the same: marriage and kindred did not go together. Pope Zachary expressed this clearly in 743, stating that no Christians were permitted to marry if they were in any way related to each other (Werminghoff 1904:19-21). Avoidance of kin-marriage had become one of the defining criteria of Christianity….”

by the 800s [pg. 120]:

“By the ninth century, a marriage in the third *generatio* [i.e. second cousins – h.chick] had become scandalous, but the fourth generation remained a viable option, along with a whole range of more distant kin (Le Jan 1995:316-17). This pattern persisted well into the tenth and eleventh centuries.”

i’m not one hundred percent certain, but i think that this shift to the regular avoidance of cousin marriage by the franks probably had something to do with the establishment of parish churches in the 700 and 800s by pepin the short and charlemagne. once there was “a church in every village,” the message that cousin marriage was not permitted would’ve been more readily heard, and, perhaps, more easily enforced (by the local priest).

i don’t know anything about the establishment of parishes in england (yet), but perhaps the english — the anglo-saxons and britons — were on a similar trajectory as the franks with regard to cousin marriage. perhaps they, too, didn’t really start to take the bans seriously until sometime in the 800s, despite there having been some very early laws forbidding cousin marriage in some of the anglo-saxon kingdoms (like in the late 600s in kent). if there was such a delay in avoiding cousin marriage in england in the seventh and eighth centuries, then there wouldn’t have been much intermarriage between the anglo-saxons and britons during those centuries simply because they all would’ve been still mostly marrying their own cousins or other close kin (i.e. fellow clan or kindred members). if so, then genetic exchange between the groups would’ve become much more likely once cousin marriage began to be consistently avoided. maybe it took the church and its bans on cousin marriage to end anglo-saxon apartheid.

if you haven’t been following along (or even if you have), you may not know that one of the little mysteries here on the blog has been why did the franks abandon cousin marriage in the 800s? in the 700s, they’d still been marrying cousins, but [from here]:

“By the ninth century, a marriage in the third *generatio* [i.e. second cousins – h.chick] had become scandalous…. [T]here was no lack of ‘honest and God-fearing people’ willing to report on their neighbours, being quite able to identify illegitimate marriages when it suited them. Apparently the public scandal of incest could shake whole communities — which suggests that abhorrence of this crime was not merely a matter of the clergy and some pious aristocrats.”

well, i think i’ve discovered what happened — the establishment and promotion of parishes and parish churches in every town and village, thanks to pepin the short and charlemagne. from The Development of the Parochial System: From Charlamagne (768-814) to Urban II (1088-1099) [pgs. 3-4]:

“A modern French historian has pointed out that every ecclesiastical institution in the end seems to lead back to Charlemagne. This is particularly true of the parish church in the modern sense of the phrase. The reign of Charlemagne (768-814) saw the beginnings of a movement for the establishment of a church and priest in every village. Such a church…very soon became the church to which the inhabitants of the village looked for all the day to day administrations of the Christian religion. It was their parish church. The movement continued for the next three hundred years. By the reign of Uban II (1088-1099), the pope who first began to apply the reforming principles of Gregory VII (1073-1085) to parish churches, each diocese north of the Alps was well on the way to being organised on the basis of the parochial system in the generally accepted sense of the term, that is a system of pastoral care exercised through numerous small urban and rural units, each with its church, its endowment and its priest. In the northern half of Italy however the country areas of dioceses continued down to comparatively modern times to be organised round the country churches of the older type (such a church being called a *plebs* or *pieve*), each with a number of dependent chapels. The division into smaller units came later in the cities than in the country. Only in the eleventh century did city area begin to be broken into parises, one of the first being Worms, which in 1016 was divided up into four parishes by the great bishop and canonist, Burchard of Worms. Up till then cities were still organised as one unit as in Roman and Merovingian times; the pastoral work being carried on from the cathedral, assisted by other churches, usually collegiate, none of them responsible for a particular area in the city. With the movement for the establishment of the parochial system in the years between Charlemagne and Urban II, first on the continent, then in England, this paper is concerned….

“At the time of the Council of Mainz (847) it has been caculated that in what now very roughly corresponds to the Federal Republic of Western Germany there were some three thousand five hundred churches.

“This spectacular increase in the number of country churches witnessed to the christianisation of barbarian society. But it was encouraged by those sections of Charlemagne’s legislation, which emphasised the importance of every Christian having frequent opportunities for worship and for instruction in Christian conduct. A church and priest in every village was a necessity if the emperor’s ideal was to be realised….

“The building of churches was assisted by a new form of property which the church acquired in the eighth century, namely tithe. The idea of tithe was not new. Previous to the eighth century the faithful had frequently been exhorted to give a tenth of their income to the Church. But it was a voluntary gift and could be made to any church they chose. In a circular letter to the bishops in 765, Pepin the Short, the father of Charlemagne, made the payment of tithe obligatory throughout his dominions…. Every person had to pay a tenth of the produce of his land or of his profits in trade or commerce, at first it would seem to the bishop of the diocese. But very soon the payment was transferred to the church where the person heard mass and his children were baptised.”

with “frequent opportunities for worship and for instruction in Christian conduct,” the franks (carolingians) of the 800s could’ve been — were probably — very well-informed on the church’s policies on incest. enforcement by the church authorities may also have increased, although a church wedding was still not mandatory at this point in time (not until the 1200s, in fact).

btw, i can’t actually take any credit for discovering this info. it was more that i stumbled upon it. =P here i need to thank the derb for indirectly helping me out — he’s always recommending The Great Courses audio lecture series, and, following his recommendations, the d.h. and i have been listening to some of them. it was in the Early Middle Ages series that i learned about the establishment of parishes by pepin. so, thanks john! (^_^) (they ARE really good series, btw!)

northern europeans began to think of — or at least write about — themselves as individuals beginning in the eleventh century a.d. [pgs. 158, 160, and 64-67 – bolding and links inserted by me]:

“The discovery of the individual was one of the most important cultural [*ahem*] developments in the years between 1050 and 1200. It was not confined to any one group of thinkers. Its central features may be found in different circles: a concern with self-discovery; an interest in the relations between people, and in the role of the individual within society; an assessment of people by their inner intentions rather than by their external acts. These concerns were, moreover, conscious and deliberate. ‘Know yourself’ was one of the most frequently quoted injunctions. The phenomenon which we have been studying was found in some measure in every part of urbane and intelligent society.

“It remains to ask how much this movement contributed to the emergence of the distinctively Western view of the individual…. The continuous history of several art-forms and fields of study, which are particularly concerned with the individual, began at this time: auto-biography, psychology, the personal portrait, and satire were among them….

“The years between 1050 and 1200 must be seen…as a turning-point in the history of Christian devotion. There developed a new pattern of interior piety, with a growing sensitivity, marked by personal love for the crucified Lord and an easy and free-flowing meditation on the life and passion of Christ….

“The word ‘individual’ did not, in the twelfth century, have the same meaning as it does today. The nearest equivalents were *individuum*, *individualis*, and *singularis*, but these terms belonged to logic rather than to human relations….

“The age had, however, other words to express its interest in personality. We hear a great deal of ‘the self’, not expressed indeed in that abstract way, but in such terms as ‘knowing oneself’, ‘descending into oneself’, or ‘considering oneself’. Another common term was *anima*, which was used, ambiguously in our eyes, for both the spiritual identity (‘soul’) of a man and his directing intelligence (‘mind’). Yet another was ‘the inner man’, a phrase found in Otloh of Saint Emmeram and Guibert of Nogent, who spoke also of the ‘inner mystery’. Their vocabulary, while it was not the same as ours, was therefore rich in terms suited to express the ideas of self-discovery and self-exploration.

“Know Yourself

“Self-knowledge was one of the dominant themes of the age…. These writers all insisted on self-knowledge as fundamental. Thus Bernard wrote to Pope Eugenius, a fellow-Cistercian, about 1150: ‘Begin by considering yourself — no, rather, end by that….For you, you are the first; you are also the last.’ So did Aelred of Rievaulx: ‘How much does a man know, if he does not know himself?’ The Cistercian school was not the only one to attach such a value to self-knowledge. About 1108 Guibert of Nogent began his history of the Crusade with a modern-sounding reflection about the difficulty of determining motive:

“‘It is hardly surprising if we make mistakes in narrating the actions of other people, when we cannot express in words even our own thoughts and deeds; in fact, we can hardly sort them out in our own minds. It is useless to talk about intentions, which, as we know, are often so concealed as scarcely to be discernible to the understanding of the inner man.’

“Self-knowledge, then, was a generally popular ideal.”
_____

there seem to be two broad sociobiological/genocultural packages when it comes to average nepotistic vs. not-so-nepotistic altruistic behaviors in human populations — these are not binary opposites, but rather the ends of some sort of continuum of behavioral traits [click on table for LARGER view]:

the common thread running through the not-so-nepotistic groups of today (primarily northwest europeans) is a long history of outbreeding (i.e. avoiding close matings, like cousin marriage). (and a long history of manorialism. yes, i WILL start my series on medieval manorialism soon!) while individualism and guilt cultures may have been present in northern europe in paleolithic or even mesolithic populations, these behavioral traits and mindsets were definitely not present in the pre-christian germanic, british, or irish populations of late antiquity. those populations were very much all about clans and kindreds, feuding and honor, shame, and group consensus. guilt/individualistic cultures (i.e. not-so-nepostic societies) can come and go depending at least partly on long-term mating patterns. human evolution can be recent as well as aeons old.

the individualistic guilt-culture of northwest (“core”) europeans today came into existence thanks to their extensive outbreeding during the medieval period (…and the manorialism). the outbreeding started in earnest in the 800s (at least in northern france) and, as we saw above, by 1050-1100 thoughts on individualis began to stir. around the same time, communes appeared in northern italy and parts of france — civic societies. violence rates begin to fall in the 1200s, especially in more outbred populations, i would argue (guess!) because the impulsive violence related to clan feuding was no longer being selected for.

by the 1300-1400s, after an additional couple hundred years of outbreeding, the renaissance was in full swing due to the “wikification” of northern european society — i.e. that nw europeans now possessed a set of behavioral traits that drove them to work cooperatively with non-relatives — to share openly knowledge and ideas and labor in reciprocally altruistic ways. the enlightenment? well, that was just the full flowering of The Outbreeding Project — an explosion of these not-so-nepotistic behavioral traits that had been selected for over the preceding 800 to 900 years. individualism? universalism? liberal democracy? tolerance? reason? skepticism? coffeehouses? the age of enlightenment IS what core europeans are all about! hurray! (^_^) the Project and its effects are ongoing today.

it could be argued that the fact that certain mating patterns seem to go together with certain societal types is just a coincidence — or that it’s the societal type that affects or dictates the mating patterns. for example, i said in my recent post on shame and guilt in ancient greece that:

“if you’ve been reading this blog for any amount of time, you’ll recognize all of those shame cultures as having had long histories of inbreeding: maternal cousin marriage was traditionally very common in east asia (here’re japan and china); paternal cousin marriage is still going strong in the arabized world; and cousin marriage was prevelant in the mediterranean up until very recently (here’s italy, for example).”

perhaps, you say, the causal direction is that nepotistic, clannish shame-cultures somehow promote close matings (cousin marriage or whatever). well, undoubtedly there are reinforcing feedback loops here, but the upshot is that both ancient greece and medieval-modern europe clearly illustrate that the mating patterns come first. (possibly ancient rome, too, but i’ll come back to that another day.) the pre-christian northern european societies were clannish shame-cultures until after the populations switched to outbreeding (avoiding cousin marriage) in the early medieval period. late archaic-early classical greek society was rather (a bit borderline) universalistic, individualistic [pg. 160+] and guilt-based until after they began to marry their cousins with greater frequency (at least in classical athens). the not-so-nepotistic guilt-culture we see now in northwest european populations is particularly resilient, i think, because the outbreeding has been carried out for a particularly long time (since at least the 800s) and thanks to the complementary selection pressures of the medieval manor system (which ancient greece lacked), but it did not exist before the early medieval period.

william hamilton wondered if renaissances/enlightenments happened in places roughly 800 years after some hardy altruism genes were introduced by barbarians into panmictic (really outbred) populations. i wonder instead if what happens is that renaissances/enlightenments occur after ca. 500 years or so of outbreeding which results in nepotistic altruism (or clannishness) being reduced or even mostly eliminated which, in turn, leads to greater cooperation and reciprocal altruism within the populations — conditions i think you might need to have a renaissance at all (see also here).

where intensive outbreeding (and manorialism) happened in medieval europe — and there is a lot of good, strong evidence for it — certainly seems to match well with where the european renaissance occurred. after some fits and starts in the 500s to 700s, the practice of avoiding close cousin marriages really took hold in exactly the areas where the renaissance/reformation/scientific revolution/enlightenment later happened — i.e. core europe — in short: england, france, the netherlands, germany, and northern italy. scandinavia a bit, too. oh…and the lowlands of scotland.

the evidence for outbreeding in ancient greece is much more tenuous. it appears fairly certain that the upper classes outbred during the archaic period in greece (800-480 b.c.). whether they outbred during the entire time period or began the practice sometime before or after 800 b.c., i don’t know. it may also be, judging by something hesiod said, that the lower classes followed suit, but it’s impossible to know for certain going by just one comment from one ancient writer.

some circumstantial evidence that might offer further support to the outbreeding-in-archaic-greece theory is that, in the 400s to 200s b.c., there was a shift in kinship terminology in ancient greece. the distinctions in the greek language between the paternal and maternal sides of the family began to disappear — for example, uncles on both sides came to be called just “uncle,” rather than there being specific words for paternal vs. maternal uncle, and so on and so forth. the same sort of linguistic shift happened in medieval europe. in germany, for instance, that shift happened between the 1100s and 1400s. at the end of the day, all cousins came to be called simply “cousin” rather than “father’s brother’s cousin” or “mother’s brother’s cousin.” the lesson seems to be: change the kinship structures and the long-term mating patterns in a society, and it shouldn’t be surprising that the kinship terminology will also change. no need to specify different sorts of cousins if all of them are off-limits as marriage partners.

michael mitterauer points out that there was a time lag in the linguistic shifts in medieval europe — the terminology changed ca. 300 to 600 years after the mating patterns began to change. perhaps something similar happened in archaic greece — the linguistic shift happened in ca. the 400s to 200s b.c. so perhaps we can infer that the mating patterns had changed to a more outbred form a few hundred years earlier. maybe right around the end of the greek dark ages and the beginning of the archaic period. dunno. complete speculation.

now i’ve come across another piece of circumstantial evidence that outbreeding may have been happening in archaic greece and that is that there was a(n incomplete) shift in the society during the time period from being a shame culture to being a guilt culture. i’m getting this from The Greeks and the Irrational, a book originally published in 1951 and written by classical scholar e.r. dodds (who was kicked out of oxford for supporting the easter rising — troublemaker! (~_^) ). presumably there have been works criticizing dodd’s thesis written since the 1950s, but i’m afraid i haven’t read any of them yet. i’m just going to run with dodd’s idea for now, but, please, consider this a sort-of thought experiment. more speculation.

first of all, in shame cultures, bad behavior is checked by the fear of being caught — of being shamed and embarassed. in guilt cultures, bad behavior is checked by one’s inner voice — feelings of guilt occurring before any action is taken. these are behavioral traits that must have been variously selected for in different human populations. secondly, shame cultures are all tied up with honor — especially family honor. japan — with its meiwaku and seppuku — is the classic example of a shame culture, but china with its confucian filial piety is not far behind. the arabized populations are definitely shame cultures with their honor killings and all their talk of respect. even european mediterranean societies are arguably more honor-shame cultures than guilt cultures [pdf].

if you’ve been reading this blog for any amount of time, you’ll recognize all of those shame cultures as having had long histories of inbreeding: maternal cousin marriage was traditionally very common in east asia (here’re japan and china); paternal cousin marriage is still going strong in the arabized world; and cousin marriage was prevelant in the mediterranean up until very recently (here’s italy, for example). it’s really, once again, the outbred northwest “core” europeans who are unique here with their guilt culture (although perhaps there are other guilt cultures out there as well). my guess is that long-term inbreeding tends to result in shame-honor cultures, while long-term outbreeding leads to guilt cultures. i’ve said so before.

back to dodd, his thesis is that ancient greece went through something of a transition from a shame to a guilt culture, but that shift was incomplete. the trend may even have reversed in classical athens. dodd points to several thematic shifts in greek literature from the iliad to the writings of plato including: a move away from blaming human failings on atē or the direct, external influences of the gods to more personal “demons,” often seen only by the individual person; the gradual adoption of the idea that individual humans have “souls” or independent “personalities”; a move away from the idea that people’s failings are due to a lack of knowledge (again coming from outside the person) as opposed to, perhaps, their own culpability; that zeus over time becomes more and more a dispenser of justice rather than just a being who capriciously interferes in human affairs (justice being important in guilt cultures as opposed to revenge in shame-honor cultures); and that philosophers and thinkers increasingly complained that the inheritance of guilt down through a family line was unjust. here from dodd on that last point [kindle locations 669-671]:

“Solon speaks of the hereditary victims of nemesis as άυαίτιοι, ‘not responsible’; Theognis complains of the unfairness of a system by which ‘the criminal gets away with it, while someone else takes the punishment later’; Aeschylus, if I understand him rightly, would mitigate the unfairness by recognising that an inherited curse may be broken.”

the idea that only the transgressor should be punished (as in guilt cultures) as opposed to additional or all of his family members (as in shame-honor cultures) doesn’t actually occur to these writers, so they haven’t quite arrived fully into a guilt culture, but they do seem to have been on the way there. much more so than earlier writers anyway. again, dodd emphasizes that [kindle locations 587-588]:

“[M]any modes of behaviour characteristic of shame-cultures persisted throughout the archaic and classical periods. There is a transition, but it is gradual and incomplete.”

the transition may have been incomplete — in fact, may have even gone into reverse — because inbreeding (cousin marriage) became increasingly common in classical athens (see here). from “Agnatio, Cognation, Consanguinitas: Kinship and Blood in Ancient Rome” in Blood and Kinship: Matter for Metaphor from Ancient Rome to the Present [pgs. 24-26], we saw in a previous post that while “aristocrats in early [archaic] Greece…married beyond the limits of their *patris*”, in classical athens “members of the *anchisteia*, the legally defined kinship group including first cousins once removed, were the preferred marriage partners.”the ancient greeks might’ve gone from being a (presumably) inbred/shame culture in the dark ages, to an outbred/quasi-guilt culture in the archaic period, and back to an inbred/shame culture over the course of the classical period. maybe. Further Research is RequiredTM.

(yes, i know. it’s all very tenuous. i told you it was speculative!)

in any case, evolution is not progressive. (heh! i’ve just been dying to say that. (~_^) ) there’s nothing to say that evolution cannot go in reverse, although perhaps it wouldn’t go back down the exact same pathway it came up. there’s no reason why we — or, rather, our descendants — couldn’t wind up, as greg cochran says, back in the trees*.

i think the way to think of the evolution of behavioral traits like nepotistic and reciprocal altruism in humans — especially perhaps in recent human evolution — is like a big simmering cauldron of stew where bubbles of certain behaviors rise up in some places only to sometimes pop and deflate and almost disppear again. outbreeding appears to have occurred many places, although whether or not over the long-term is not always clear: archaic greece (maybe), ancient rome, the bamileke of cameroon, the igbo of west africa, the turkana of east africa, the semai of malaysia, the bushmen of southern africa (aka The Harmless People), and europeans since the early medieval period — especially northwest europeans. the ancient greek experiment seems to have run out of momentum and collapsed on its own; the roman example probably popped thanks to the barbarian invasions; and the northwest european one is…currently ongoing. for now.

*“Many were increasingly of the opinion that they’d all made a big mistake in coming down from the trees in the first place. And some said that even the trees had been a bad move, and that no one should ever have left the oceans.”

apart from bequeathing the world a handful of languages, some philosophical ideas and legal traditions, a bunch of fr*cking awesome ruins, a few really straight roads, and the wine, what did the romans ever do for us?

well, i think we (northern europeans) may have gotten the idea to avoid cousin marriage from them!

“The early republican system of structuring marriage…essentially prevented agnatic *familiae* from remaining exclusive family units…. Neither agnates, nor cognates, were allowed to enter marriage within the sixth degree, i.e. the fourth degree by modern reckoning [third cousins or closer-h.chick]. Such alliances were considered *incestus* and *nefas*, defiled and contrary to divine law, and were forbidden.[29] Marriages to stepchildren, children-in-law, and parents-in-law were also prohibited, even after the spouse who had brought *adfinitas* had died.[30] In contrast, in classical Athens, members of the *anchisteia*, the legally defined kinship group including first cousins once removed, were the preferred marriage partners. In order to protect the continuity of the household (*oikos*), even marriage between half-siblings was allowed. The Greek practice of endogamy has been interpreted as an attempt to strengthen the *oikos* and to guarantee that its property was transmitted intact. This family strategy is most notorious in the case of the daughter as heiress, the *epikleros*. Usually women were not able to inherit or hold property, but when an Athenian died without male issue, his property was attached to his daughter, who then had to marry the closest agnate, often an uncle or first cousin. In this way the *oikos* remained linked to the agnatic lineage.[31]

“Roman society, in a strategy unique in antiquity, proscribed familial endogamy, opting instead for exogamy and the building of large kinship groups, even if this meant that property was diffused and the agnatic lineage thus weakened. Prescriptive marriage regulations were never developed, but Romans still knew perfectly well the boundaries distinguishing acceptable marriages alliances from misalliances. Familial exogamy was combined with social endogamy. Though it was forbidden legally to choose marriage partners from among agnatic or cognatic kin, it was nevertheless expected that spouses would be selected from a specific social group: matrimonial matches were judged on these grounds as *dignus* (worthy), *splendissimus* (most spendid), *par* (of equals) or *impar* (of unequals), or even *sordidus* (sordid).[32] Unlike aristocrats in early Greece, who married beyond the limits of their *patris*, Roman aristocrats concentrated on Rome. Given the limited number of appropriate families and the strict marriage regulations, the options of a Roman aristocrat seeking a marriage alliance were rather few. This ‘merry-go-round’ within the peer group led to the building up of a complext network of intertwined familial relations and ultimately to the creation of one overwhelmingly aristocratic family….

“Strains on aristocratic cohesion, however, as well as the beginning of the disintegration of the Roman elite during the third and second centuries BCE, coincided with changes in Roman marriage regulations. There is not enough source material to reconstruct precisely the relationship between changes in the building of kinship groups and in socio-political structures during the Roman Republic, but it is known that during the third century BCE, marriage restrictions were relaxed up to the fourth degree, thereby allowing first cousins to marry. Kinship groups could thus become more exclusive and refuse intermarriage with other families…. The most famous examples of this practice can be found within Rome’s most illustrious family, the Cornelii Scipiones, where the daughter of Scipio Africanus, the conqueror of Hannibal, married her first cousin once removed; and Scipio’s adoptive grandson, Aemilianus, married his first cousin, Sempronia, herself a granddaughter of the famous general. Despite such examples, however, marriage between cousins never became frequent within the Roman aristocracy.

“[30.] Gaius, ‘Institutiones’ l.63; Gaius ‘Digest’ 38.4.3-7. During the fourth century CE, marriage prohibitions were extended to collateral affinal kin of the first degree, i.e., the brother’s wife or the wife’s sister; family exogamy was thus enforced (‘Codex Theodosianus 3.12.2’).

“[31.] Though endogamy was practiced, there is no evidence of prescriptive marriage regulations concerning cousin marriage in Athens. On the *epikleros*, see Cheryl A. Cox, ‘Household Interests: Property, Marriage Strategies, and Family Dynamics in Ancient Athens (Princeton, NJ, 1998), 95-99; on marriage between cousins, see Wesley E. Thompson, ‘The Marriage of First Cousins in Athenian Society,’ Phoenix 21 (1967): 273-82.”

so the romans avoided close cousin marriage, established a republic based on democratic principles, had a legal system founded upon universalistic principles, expanded their polity into a vast and one of the world’s most impressive empires (iow, invaded the world), eventually extended roman citizenship to non-romans and allowed barbarians to come live inside the empire (iow, invited the world), and, then, well…oops! *ahem*

why the romans ever decided to avoid cousin marriage in the first place is another question altogether, though. one for another day. perhaps. if it’s even answerable at all.

anyway, there is a direct link between ancient rome’s and medieval/modern northern europe’s cousin marriage avoidance. that link is quite obviously the catholic church which adopted all sorts of roman institutional structures and practices; but more specifically i’m referring to several of the church fathers, the earliest of whom lived in the roman empire itself and who, no doubt, were very aware of the roman avoidance of cousin marriage and very likely, having been raised “in rome,” had even internalized the idea as a natural and good one.

here, in sequence, are the guys that i think passed the romans’ notion of avoiding close marriage down to us (by introducing the idea into canon law):

– st. ambrose (d.397) – while it’s not clear whether or not ambrose disapproved of cousin marriage, he did frown upon other forms of close marriage as illustrated in this letter of his [pg. 351] from 393. ambrose was, of course, the mentor of…

– st. augustine (d.430) – as shown in the previous post, augustine was very much opposed to cousin marriage. one of augustine’s students, or at least someone who was heavily influenced by augustine, was…

– julianus pomerius – pomerius was a priest in fifth century gaul, and one of his students was…

– caesarius of arles (d.542) – who was a BIG fan of st. augustine — in fact, many of his sermons (he was renowned as a preacher, apparently — here’s volume 1 in a collection of his surviving sermons) were based directly on augustine’s writings. it was the then bishop caesarius who presided over the council of agde in 506 which issued the earliest (known) church ban on cousin marriage. this was very much a local ban that only applied to roman catholics in the very south of france (at the time controlled by the arian visigoths), but this idea to ban cousin marriages would be picked up soon afterwards by other church councils further to the north in “france” by merovingian bishops (in fact, i think caesarius may have been in attendance at one or two of those councils). i’ll be posting more on this history soon.

the notion of banning cousin marriage eventually spread across the channel into kent first (pretty sure) and then to the rest of england and later across central europe during the ostsiedlung, etc., etc. at some point, the idea was picked up by the popes in rome, too. not sure exactly when that occurred. i’ll work on finding that out. gregory the great (d.604) was one of the major proponents of the cousin marriage bans, so it was definitely well established in hq back in rome by the late 500s.

so, if you’re one of those westerners who goes ewwww! at the thought of cousins marrying, you can thank the romans!
_____

p.s. – here from caesarius of arles’ “Sermon 19 – Preaching of St. Augustine to the People” [pg. 101]:

“…No one should dare to marry his aunt or cousin or his wife’s sister, for it would be wrong for us to perish through evil dissipation arising from diabolical pleasure….”